AIX native MPIO Post: 302259062

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

AIX MPIO and EMC

We are looking at running MPIO for it's redundancy and load balancing benefits. Does anyone know what pieces of software or modules are needed on the VIO server to get load balancing to work. Remember we are using EMC's DMX3500 storage system. We no longer want to use Powerpath. :rolleyes: ...

2. AIX

AIX 5.3 MPIO vs RDAC on DS4000 range

Hi I would like to ask what the benefits are of changing from RDAC to MPIO when connecting to a DS4000 on AIX 5.3? I have heard that IBM MPIO "might" support more than 1 active path to a LUN when connecting to a DS4800 through more than 1 host connection on the same AIX client. I understand that...

3. AIX

Uninstall native MPIO driver on AIX

Hi, I was trying to uninstall the native MPIO driver on the AIX 6.1 machine we have in our lab and ran into a whole bunch dependent filesets initially. I deleted the disks, fcsX, fscsiX, fcnetX and tried again, but ran into the same error. Subsequently, I figured out that the OS disks in...

4. AIX

MPIO reliability

Hi, we have a vew boxes using MPIO and they are connected to some virtualization software managing some disk subsystems, offering volumes to the AIX boxes. Sometimes when a cable has been plugged out for a test or when a real problem occurs, using lspath to show the state of the paths shows...

5. AIX

Upgrading from native MPIO to SDDPCM AIX 6.1

We have AIX 6.1 system attached to SAN disks (DS4700 and DS8100) thru SVC. Initially when the system was I forgot to install sddpcm drivers. and wanted to know how can i go with the installation of the sddpcm drivers. My understandin going thru the manual ...

6. AIX

GNU TAR vs NATIVE AIX TAR

Hello, Getting this very strange error, made tar/zip through gnu tar GNU Tar ( successful tar and zip without any errors ) /opt/freeware/bin/tar cvf - /oraapp| gzip > /backup/bkp_15_6_16_oraapp.tgz GNU unTar error root@test8:/>gunzip < /config1/bkp_15_6_16_oraapp.tgz |...

7. AIX

AIX native SNMP producing limited results when walking MIB tree

The company I work for has various AIX servers that I've recently migrated to AIX 7.1 (from 6.1). Some are powerHA clusters some are not. Likewise, the systems engineer that I replaced had net-snmp installed on said clustered systems. Long story short I am re-invoking AIX's native SNMP (v3) for...

8. AIX

DISK and MPIO

Hello, I have some concerns over the disk management of my AIX system. For example server1 / > lspv hdisk0 00fa6d1288c820aa rootvg active hdisk1 00fa6d1288c8213c vg_2 active hdisk2 00c1cc14d6de272b ...

9. AIX

issue AIX MPIO path closed

Hello, I have encountered the issue on my AIX 6.1. As you can see below, the hdisk1 & hdisk8 are not recognized by the system / > lspv hdisk0 00fa6d1288c820aa rootvg active hdisk1 00fa6d1288c8213c None hdisk2 ...

10. UNIX for Beginners Questions & Answers

Native AIX TL Upgrade on a VIO Server

What happens if we perform a Native AIX TL Upgrade on a VIO server? I mean instead of updateios I logged into oem_setup_env and ran a update_all to a new TL.

LEARN ABOUT MOJAVE

vgreduce

VGREDUCE(8)                                                   System Manager's Manual                                                  VGREDUCE(8)

NAME

       vgreduce - reduce a volume group

SYNOPSIS

       vgreduce  [-a|--all] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--removemissing] [-t|--test] [-v|--verbose] VolumeGroupName [Physi-
       calVolumePath...]

DESCRIPTION

       vgreduce allows you to remove one or more unused physical volumes from a volume group.

OPTIONS

       See lvm for common options.

       -a, --all
              Removes all empty physical volumes if none are given on command line.

       --removemissing
              Removes all missing physical volumes from the volume group, if there are no logical volumes allocated on those. This resumes  normal
              operation of the volume group (new logical volumes may again be created, changed and so on).

              If this is not possible (there are logical volumes referencing the missing physical volumes) and you cannot or do not want to remove
              them manually, you can run this option with --force to have vgreduce remove any partial LVs.

              Any logical volumes and dependent snapshots that were partly on the missing disks get removed completely. This includes those  parts
              that lie on disks that are still present.

              If your logical volumes spanned several disks including the ones that are lost, you might want to try to salvage data first by acti-
              vating your logical volumes with --partial as described in lvm (8).

SEE ALSO

       lvm(8), vgextend(8)

Sistina Software UK                                      LVM TOOLS 2.02.95(2) (2012-03-06)                                             VGREDUCE(8)